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BMW E91 325xi N52 3.0L

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BMW E91 325xi N52 3.0L Engine Emission Parts

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Vacuum Pump Sprocket

ES#4759434 - 11417516128 - Vacuum Pump Sprocket - The main drive cog for the vacuum pump. - Bremmen Parts - BMW

The main drive cog for the vacuum pump. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
4759434
Mfg#:
11417516128
Special Order: No Guaranteed ETA
ON SALE! SAVE 21%
$26.99

This product was last offered at the strikethrough price on
05-02-2026

$21.21 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator Vent Hose

ES#5457616 - 11617522933 - Oil Separator Vent Hose - Replace your cracked or damaged vent hose - Bremmen Parts - BMW

Replace your cracked or damaged vent hose 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
5457616
Mfg#:
11617522933
In Stock
ON SALE! SAVE 20%
$22.99

This product was last offered at the strikethrough price on
05-02-2026

$18.39 USD
Free Shipping
on orders $49 and up

Base

ES#1897545 - 07147273549 - Base - 43x35mm dimensions and is used to insolate the gas tank from the body of the vehicle to reduce noise, harshness and vibration. - Genuine BMW - BMW MINI

43x35mm dimensions and is used to insolate the gas tank from the body of the vehicle to reduce noise, harshness and vibration.

Brand:
Genuine BMW - Corporate Logo
ES#:
1897545
Mfg#:
07147273549
Ships in 1-2 days
7% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$14.99

This product was last offered at the strikethrough price on
09-05-2026

$13.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

O-Ring - Priced Each

ES#25776 - 11617533329 - O-Ring - Priced Each - Seals the PCV angle connector to the intake manifold - Genuine BMW - BMW

Seals the PCV angle connector to the intake manifold

Brand:
Genuine BMW - Corporate Logo
ES#:
25776
Mfg#:
11617533329
Ships in 1-2 days
$8.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pipe Clip

ES#36203 - 16116766685 - Pipe Clip - Genuine BMW - BMW MINI

Brand:
Genuine BMW - Corporate Logo
ES#:
36203
Mfg#:
16116766685
Ships in 2 Business Days
$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor - Bank 2 Pre-Cat

Located in the front position of the exhaust manifold 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
5480641
Mfg#:
11787558073
Ships in 1 Business Day
$105.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Separator Vent Hose

Maintain peak engine efficiency and restore proper crankcase ventilation with this high-quality Oil Separator Vent Hose from Burgaflex.

Brand:
Burgaflex - Corporate Logo
ES#:
4349495
Mfg#:
11617522933
Ships in 8 Business Days
$13.99 USD
Free Shipping

Rear Oxygen Sensor Set

Sluggish O2 sensors don't just trigger annoying Check Engine Lights; they cause poor fuel economy, rough idling, and can even degrade your expensive catalytic converters over time. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5481204
Mfg#:
11787545074/5KT
Ships in 1-2 days
$366.99

This product was last offered at the strikethrough price on
08-31-2026

$296.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oxygen Sensor

ES#4900647 - 11787558054 - Oxygen Sensor - Restore the efficiency, smoothness, and peak performance of your BMW with this premium pre-catalytic broadband oxygen sensor from Meyle. - Meyle - BMW

Restore the efficiency, smoothness, and peak performance of your BMW with this premium pre-catalytic broadband oxygen sensor from Meyle. 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
For vehicles with Low Compression Engine

Brand:
Meyle - Corporate Logo
ES#:
4900647
Mfg#:
11787558054
Ships on Sep 23, 2026
$134.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Bank 1 Post-Cat

ES#4487460 - 11787545074 - Rear Oxygen Sensor - Bank 1 Post-Cat - Fuel control and emissions control sensor - Meyle - BMW
ECS Tuning recommends this product.

Fuel control and emissions control sensor 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!

Brand:
Meyle - Corporate Logo
ES#:
4487460
Mfg#:
11787545074
Ships on Sep 23, 2026
$116.99 USD
Free Shipping
on orders $49 and up

Engine Breather Hose

Keep your engine breathing cleanly and performing at its peak with a premium replacement engine breather hose from Burgaflex.

Brand:
Burgaflex - Corporate Logo
ES#:
5507094
Mfg#:
11157522931
Ships on Sep 24, 2026
Auto Notify
$52.99 USD
Free Shipping
on orders $49 and up

Front Oxygen Sensor - Bank 1 Pre-Cat

Fuel control and emissions control sensor 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
5480567
Mfg#:
11787558055
Ships on Nov 16, 2026
Auto Notify
$99.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Rear Oxygen Sensor - Bank 1 Post-Cat

Fuel control and emissions control sensor 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
5505435
Mfg#:
11787545074
Ships on Dec 29, 2026
Auto Notify
$79.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

E9X M3 Oxygen Sensor - Priced Each

Located on the catalytic converters, 2 required 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
5505261
Mfg#:
11787537984
Ships on Dec 29, 2026
Auto Notify
$79.99 USD
This product is lifetime replacement eligible Lifetime Replacement

1/8" Barbed Vacuum Fittings - Set Of 10

Perfect for repairing and replacing cracked vacuum lines - Best used with 3mm to 4mm vacuum hoses 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Bremmen Parts - Corporate Logo
ES#:
5445719
Mfg#:
125DBCON
Special Order: No Guaranteed ETA
ON SALE! SAVE 59%
$12.99

This product was last offered at the strikethrough price on
03-22-2026

$5.39 USD
This product is lifetime replacement eligible Lifetime Replacement

Vacuum Pump

ES#2842166 - 11667519457 - Vacuum Pump - Located on the front of the engine block - Pierburg - BMW

Located on the front of the engine block

Brand:
Pierburg - Corporate Logo
ES#:
2842166
Mfg#:
11667519457
Special Order: No Guaranteed ETA
$225.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Emission Parts

Repairing failed emission components doesn't just turn off the check engine light so you can pass your local emissions test, it also improves performance and fuel economy. ECS stocks all common emission controls, from oxygen sensors to PCV valves.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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